WebM to MP4 Converter

Turn WebM videos, browser screen recordings and downloads into MP4 for WhatsApp, PowerPoint, phones and editors. Free, private, no watermark.

Choose WebM videosor drag and drop files here

The video is re-recorded while it plays, so saving takes about as long as the clip (shorter when sped up). Keep this tab open. Chrome and Edge save MP4; other browsers save WebM.

🔒 100% private — processing happens in your browser. Nothing is uploaded.

How to convert WebM to MP4

  1. Choose your WebM files.
  2. They are converted to MP4 on your device while they play.
  3. Download the MP4 files.

WebM is common for browser screen recordings and web downloads, but PowerPoint, many phones, video editors and messaging apps prefer MP4. Use our Screen Recorder and convert the result here.

FAQ

Is quality lost?

The picture size stays the same; the video is re-encoded at a high bitrate.

Which browser should I use?

Chrome or Edge save MP4. Other browsers may only save WebM.

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